sautee onion in small amount of water or butter spray until tender, drain. in bowl, stir together cream cheese, salt, pepper, onion, chicken and 1/2 of jalapenos or chilis. spoon mixture down middle of tortillas and place in a 13x9x3 glass dish sprayed with pam. place seam side down. for sauce: in a saucepan, combine soup, sour cream and milk and the last 1/2 of peppers. pour over enchiladas. bake covered at 350 for 40 minutes. sprinkle with cheese and bakd uncovered for 5 minutes or until cheese is melted.